Exposure
ID
GRAVI.2025-05-12T05:48:46.536_1
Header ID
GRAVI.2025-05-12T05:48:46.536
Date updated
2025-05-12 19:45:47 UTC+0000
Release date
2026-05-12 19:45:45 UTC+0000
UTC Start
2025-05-12 05:48:46.536
UTC End
2025-05-12 05:54:46.536
MJD Start
60807.24220528
MJD End
60807.24637194667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0074684999999999994
Ambient temperature (°C)
17.55
Seeing (arcsec)
0.5
Observation
ID
67247
Category
science
Program ID
115.27WT.001
Program Title
THE GALACTIC CENTER WITH GRAVITY(+) - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
ID
49989
Name
SGRA
RA
266.416252
DEC
-29.00739
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5100 56.5260 16.6000 17.5000
U1-U3 102.1420 102.2120 22.7000 23.6000
U1-U4 127.3420 127.8350 49.9580 50.9220
U2-U3 46.3300 46.3940 30.1000 31.0000
U2-U4 85.9170 86.4730 71.1320 72.0370
U3-U4 59.3700 59.8200 101.9660 102.6530
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60807.24220528
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416252
DEC -29.00739
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 56.51
HIERARCH ESO ISS PBL12 END 56.526
HIERARCH ESO ISS PBLA12 START 16.6
HIERARCH ESO ISS PBLA12 END 17.5
HIERARCH ESO ISS PBL13 START 102.142
HIERARCH ESO ISS PBL13 END 102.212
HIERARCH ESO ISS PBLA13 START 22.7
HIERARCH ESO ISS PBLA13 END 23.6
HIERARCH ESO ISS PBL14 START 127.342
HIERARCH ESO ISS PBL14 END 127.835
HIERARCH ESO ISS PBLA14 START 49.958
HIERARCH ESO ISS PBLA14 END 50.922
HIERARCH ESO ISS PBL23 START 46.33
HIERARCH ESO ISS PBL23 END 46.394
HIERARCH ESO ISS PBLA23 START 30.1
HIERARCH ESO ISS PBLA23 END 31.0
HIERARCH ESO ISS PBL24 START 85.917
HIERARCH ESO ISS PBL24 END 86.473
HIERARCH ESO ISS PBLA24 START 71.132
HIERARCH ESO ISS PBLA24 END 72.037
HIERARCH ESO ISS PBL34 START 59.37
HIERARCH ESO ISS PBL34 END 59.82
HIERARCH ESO ISS PBLA34 START 101.966
HIERARCH ESO ISS PBLA34 END 102.653
HIERARCH ESO ISS AMBI TAU0 START 0.007861
HIERARCH ESO ISS AMBI TAU0 END 0.007076
HIERARCH ESO ISS AMBI TEMP 17.55
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.51
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530